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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-HRT-06-066
Date: March 2006

Long-Term Pavement Performance Inventory Data Collection Guide

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The Long-Term Pavement Performance (LTPP) Program is an ongoing and active program. To obtain current information and access to other technical references, LTPP data users should visit the LTPP Web site. LTPP data requests, technical questions, and data user feedback can be submitted to LTPP customer service via e-mail at ltppinfo@fhwa.dot.gov.

Gary L. Henderson
Director, Office of Infrastructure
Research and Development


This document is distributed under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for its contents or use thereof. This report does not constitute a standard, specification, or regulation.

The U.S. Government does not endorse products or manufacturers. Trade and manufacturers' names appear in this report only because they are considered essential to the object of the document.

Quality Assurance Statement

The Federal Highway Administration (FHWA) provides high-quality information to serve Government, industry, and the public in a manner that promotes understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement.

Technical Report Documentation Page


1. Report No.


2. Government Accession No.

3. Recipient's Catalog No.

4. Title and Subtitle


5. Report Date

March 2006

6. Performing Organization Code

7. Author(s)

A.L. Simpson, C.R. Copeland

8. Performing Organization Report No.

9. Performing Organization Name and Address

MACTEC Engineering and Consulting, Inc.
12104 Indian Creek Court, Suite A
Beltsville, MD 20705-1242

10. Work Unit No. (TRAIS)

11. Contract or Grant No.


12. Sponsoring Agency Name and Address

Office of Infrastructure Research and Development
Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101-2296

13. Type of Report and Period Covered

Final Report, July 2005 to December 2005

14. Sponsoring Agency Code

15. Supplementary Notes

Contracting Officer's Technical Representative (COTR): Aramis Lopez, Jr., HRDI-13

16. Abstract

The primary purpose for this data collection guide is to provide a uniform basis for data collection during long-term monitoring of the performance of pavement test sections under study by the Long-Term Pavement Performance (LTPP) Program. It is a revision to chapter 2 of the 1993 LTPP Data Collection Guide. Inventory data include that data necessary to: 1) identify the test section,

2) describe the geometric details of its construction and the material properties of its structural constituents, and 3) identify construction costs and costs of subsequent maintenance and repair before the long-term monitoring effort. These data are intended to describe the pavement test section at the time the section was included in the LTPP study.

17. Key Words

asphalt concrete, continuously reinforced concrete pavement, General Pavement Studies, jointed plain concrete pavement, jointed reinforced concrete pavement, LTPP, material properties, pavement age, pavement geometry, portland cement concrete, section identification, Specific Pavement Studies, subgrade

18. Distribution Statement

No restrictions. This document is available to the public through the National Technical Information Service, Springfield, VA 22161.

19. Security Classif. (of this report)


20. Security Classif. (of this page)


21. No. of Pages


22. Price

Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

SI* (Modern Metric) Conversion Factors

Table of Contents





List of Tables

List of Acronyms and Abbreviations


AASHTO American Association of State Highway and Transportation Officials
AC asphalt concrete
ACI American Concrete Institute
ASTM American Society for Testing and Materials
CN construction numbers
CPR concrete pavement restoration
CRCP continuously reinforced concrete pavement
ESAL equivalent single axle load
FHWA Federal Highway Administration
FWD falling weight deflectometer
GPS General Pavement Studies
HMAC Hot-mix asphalt concrete
IMS Information Management System
JCP jointed concrete pavement
JPCP jointed plain concrete pavement
JRCP jointed reinforced concrete pavement
LTE load transfer efficiency
LTPP Long-Term Pavement Performance
PCC portland cement concrete
RSC Regional Support Contractor
SAMI stress-absorbing membrane interlayers
SHA State highway agency
SHRP Strategic Highway Research Program
SMP Seasonal Monitoring Program
SPS Specific Pavement Studies
TSSC Technical Support Services Contractor
VMA voids in mineral aggregate


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